refactor(build): remove Gruntfile and transition to npm scripts for build process

- Deleted Gruntfile.js to streamline the build process.
- Updated package.json to include new npm scripts for build, clean, and watch tasks.
- Added dependencies for concurrent execution and CSRF token management.
- Integrated csrf-sync for improved CSRF protection in the application.
- Refactored app and API client to utilize the new CSRF token management approach.

worklenz-backend/scripts/compress.js

@@ -0,0 +1,53 @@
+const fs = require('fs');
+const path = require('path');
+const { createGzip } = require('zlib');
+const { pipeline } = require('stream');
+
+async function compressFile(inputPath, outputPath) {
+  return new Promise((resolve, reject) => {
+    const gzip = createGzip();
+    const source = fs.createReadStream(inputPath);
+    const destination = fs.createWriteStream(outputPath);
+
+    pipeline(source, gzip, destination, (err) => {
+      if (err) {
+        reject(err);
+      } else {
+        resolve();
+      }
+    });
+  });
+}
+
+async function compressDirectory(dir) {
+  const files = fs.readdirSync(dir, { withFileTypes: true });
+  
+  for (const file of files) {
+    const fullPath = path.join(dir, file.name);
+    
+    if (file.isDirectory()) {
+      await compressDirectory(fullPath);
+    } else if (file.name.endsWith('.js') || file.name.endsWith('.css')) {
+      const gzPath = fullPath + '.gz';
+      await compressFile(fullPath, gzPath);
+      console.log(`Compressed: ${fullPath} -> ${gzPath}`);
+    }
+  }
+}
+
+async function main() {
+  try {
+    const buildDir = path.join(__dirname, '../build');
+    if (fs.existsSync(buildDir)) {
+      await compressDirectory(buildDir);
+      console.log('Compression complete!');
+    } else {
+      console.log('Build directory not found. Run build first.');
+    }
+  } catch (error) {
+    console.error('Compression failed:', error);
+    process.exit(1);
+  }
+}
+
+main();